基于IaaS云计算平台的弹性计费模型

[摘要] 文章认为计费系统是云计算平台不可缺少的重要组成部分。在分析中国外著名企业的云计费模式的基础上，文章针对基础设施即服务（IaaS）云计算平台，提出了一种基于租赁实体的计费模型与基于事件触发机制的计费模型相结合的计费模型，利用租赁实体的计费模型对空闲的主机进行调度，通过事件触发机制对计费信息进行统计。该计费模型使云计费方式更加灵活。

[关键词] 云计算；租赁模型；事件触发机制；弹性计费模型

[Abstract] A billing system is one of the most important parts of a cloud computing platform. In this paper, we analyze the cloud billing models of some well-known enterprises and propose an elastic billing model. This billing model combines a leasing instance model with an event-triggered mechanism. The leasing-instance model can schedule the idle host, and the event-triggered mechanism can create statistics on billing information. This billing model makes cloud computing billing more flexible.

[Keywords] cloud computing; leasing instance model; event-trigged mechanism; elastic billing model